CN221172410U - Air conditioning equipment - Google Patents

Abstract

The utility model relates to the technical field of air conditioning equipment, in particular to air conditioning equipment, and aims to solve the technical problems that the existing air conditioning equipment is insufficient in condensation of refrigerant in a high-temperature environment, the refrigeration effect is affected due to insufficient supercooling degree, and refrigerant sound is generated. The air conditioning equipment comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger and a water heat exchanger, wherein the water heat exchanger comprises a first heat exchange pipeline and a second heat exchange pipeline which exchange heat with each other, an exhaust port of the compressor, an inlet of the first heat exchange pipeline and a first end of the outdoor heat exchanger are mutually communicated, an outlet of the first heat exchange pipeline, a second end of the outdoor heat exchanger and a first end of the indoor heat exchanger are mutually communicated, a second end of the indoor heat exchanger is communicated with an air return port of the compressor, and two ends of the second heat exchange pipeline are communicated with water sources to form a circulating waterway, so that high-temperature and high-pressure refrigerant in the first heat exchange pipeline can be cooled and condensed to increase supercooling degree of the condenser.

Description

Air conditioning equipment

Technical Field

The utility model relates to the technical field of air conditioning equipment, and particularly provides air conditioning equipment.

Background

Air conditioner is a temperature regulating device, which has been developed to date, and mainly uses circulation of refrigerant to transfer heat, so as to realize heat exchange, thereby achieving the purpose of regulating environmental temperature, and being widely popularized.

However, when the existing air conditioning equipment operates in summer in high-temperature weather, the condenser cannot completely condense the high-temperature and high-pressure gaseous refrigerant discharged by the compressor due to higher outdoor environment temperature, so that the supercooling degree is insufficient, the refrigerating effect is affected, and meanwhile, the refrigerant mixed by gas and liquid can also produce refrigerant sound to affect the use experience of a user.

Accordingly, there is a need in the art for a new solution to the above-mentioned problems.

Disclosure of utility model

The utility model aims to solve the technical problems that when the existing air conditioning equipment operates in summer under high-temperature weather, the condenser cannot completely condense high-temperature and high-pressure gaseous refrigerant discharged by the compressor due to higher outdoor environment temperature, so that the supercooling degree is insufficient, the refrigerating effect is affected, and meanwhile, the refrigerant mixed with gas and liquid also generates refrigerant sound to influence the use experience of a user.

The utility model provides air conditioning equipment which is characterized by comprising a compressor, an indoor heat exchanger, an outdoor heat exchanger, a first electronic expansion valve, a second electronic expansion valve and a water heat exchanger, wherein the water heat exchanger comprises a first heat exchange pipeline and a second heat exchange pipeline, the first heat exchange pipeline and the second heat exchange pipeline are closely arranged to realize heat exchange between the first heat exchange pipeline and the second heat exchange pipeline, an exhaust port of the compressor, an inlet of the first heat exchange pipeline and a first end of the outdoor heat exchanger are mutually communicated, a second end of the outdoor heat exchanger is communicated with a first end of the second electronic expansion valve, an outlet of the first heat exchange pipeline, a second end of the second electronic expansion valve and a first end of the first electronic expansion valve are mutually communicated, a second end of the first electronic expansion valve is communicated with a first end of the indoor heat exchanger, a second end of the indoor heat exchanger is communicated with a return air port of the compressor, and the second end of the indoor heat exchanger is communicated with a water source of the indoor heat exchanger, so that the high-temperature and high-pressure water source can be cooled by circulating the water source, and the high-temperature and high-pressure water source can be cooled by the water source.

In the preferred technical scheme of the air conditioning equipment, the air conditioning equipment further comprises a first four-way valve, a second four-way valve, a first electromagnetic valve and a second electromagnetic valve, wherein the first four-way valve comprises a first interface, a second interface, a third interface and a fourth interface, the second four-way valve comprises a fifth interface, a sixth interface, a seventh interface and an eighth interface, the first interface is communicated with an exhaust port of the compressor, the second interface is communicated with an air return port of the compressor, the third interface is communicated with an inlet of a first heat exchange pipeline, the fourth interface is communicated with a second end of the indoor heat exchanger, the fifth interface is communicated with an exhaust port of the compressor, the sixth interface is communicated with a first end of the outdoor heat exchanger, the eighth interface is communicated with a first end of the first electromagnetic valve, the second end of the first electromagnetic valve is communicated with an inlet of the first heat exchange pipeline, the first outlet of the first electromagnetic valve is communicated with a second end of the electronic valve, the second electromagnetic valve is communicated with a second electromagnetic valve, and the first electromagnetic valve, the second electromagnetic valve and the expansion valve can be mutually matched with the first four-way valve, the second electromagnetic valve and the expansion valve.

In the preferable technical scheme of the air conditioning equipment, the air conditioning equipment further comprises a ground heating heat exchanger, a water inlet of the ground heating heat exchanger is communicated with the second end of the second electromagnetic valve, and a water outlet of the ground heating heat exchanger, the first end of the first electronic expansion valve and the second end of the second electronic expansion valve are mutually communicated.

In the preferable technical scheme of the air conditioning equipment, the outdoor heat exchanger further comprises a defrosting heat exchanger, the defrosting heat exchanger is located at the bottom of the outdoor heat exchanger, a first end of the defrosting heat exchanger is communicated with a second end of the second electronic expansion valve, and the second end of the defrosting heat exchanger, the water outlet of the floor heating heat exchanger and the first end of the first electronic expansion valve are mutually communicated.

In the preferable technical scheme of the air conditioning equipment, the water heat exchanger is a sleeve heat exchanger, the inner diameter of the second heat exchange pipeline is larger than the outer diameter of the first heat exchange pipeline, the second heat exchange pipeline is sleeved on the first heat exchange pipeline, and the circulating water flows between the outer wall of the first heat exchange pipeline and the inner wall of the second heat exchange pipeline.

In the preferred technical scheme of the air conditioning equipment, the air conditioning equipment further comprises a liquid storage tank, the first end of the liquid storage tank is communicated with the first end of the first electronic expansion valve, the second end of the liquid storage tank, the water outlet of the floor heating heat exchanger and the second end of the outdoor heat exchanger are mutually communicated, and the liquid storage tank can adjust the flow of the refrigerant in the circulating pipeline so as to adapt to different working modes.

In the preferable technical scheme of the air conditioning equipment, the air conditioning equipment further comprises an oil-gas separator, wherein the first end of the oil-gas separator is communicated with the exhaust port of the compressor, the second end of the oil-gas separator is communicated with the first interface and the fifth interface, and the third end of the oil-gas separator is communicated with the air inlet of the compressor so as to separate the oil-gas mixture discharged by the compressor.

In the preferred technical scheme of the air conditioning equipment, the air conditioning equipment further comprises a temperature sensor arranged on the outdoor heat exchanger, and the temperature sensor can detect the temperature of the outdoor heat exchanger, so that a basis is provided for starting a defrosting mode of the air conditioning equipment.

In the preferable technical scheme of the air conditioning equipment, the air conditioning equipment further comprises a first air pipe stop valve and a second air pipe stop valve, wherein the first end of the first air pipe stop valve is communicated with the first end of the first electronic expansion valve, the second end of the first air pipe stop valve is communicated with the first end of the liquid storage tank, the first end of the second air pipe stop valve is communicated with the second end of the indoor heat exchanger, and the second end of the second air pipe stop valve is communicated with the fourth interface.

In the preferable technical scheme of the air conditioning equipment, the number of the indoor heat exchangers and the number of the first electronic expansion valves are multiple, and multiple groups of the indoor heat exchangers and the first electronic expansion valves are connected in parallel.

Under the condition of adopting the technical scheme, the air conditioning equipment comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a first electronic expansion valve, a second electronic expansion valve and a water heat exchanger, wherein the water heat exchanger comprises a first heat exchange pipeline and a second heat exchange pipeline, the first heat exchange pipeline and the second heat exchange pipeline are tightly arranged to realize heat exchange between the first heat exchange pipeline and the second heat exchange pipeline, an exhaust port of the compressor, an inlet of the first heat exchange pipeline and a first end of the outdoor heat exchanger are mutually communicated, a second end of the outdoor heat exchanger is communicated with a first end of the second electronic expansion valve, an outlet of the first heat exchange pipeline, a second end of the second electronic expansion valve and a first end of the first electronic expansion valve are mutually communicated, a second end of the first electronic expansion valve is communicated with a first end of the indoor heat exchanger, and two ends of the second heat exchange pipeline are communicated with a water source to form a circulating waterway, so that high-temperature and high-pressure refrigerant in the first heat exchange pipeline can be cooled and condensed. Through the arrangement, under the refrigeration mode, the high-temperature and high-pressure gaseous refrigerant discharged by the compressor is divided into two parts, one part enters the outdoor heat exchanger to perform conventional cooling condensation, the other part enters the water heat exchanger to perform heat exchange with the circulating waterway so as to realize condensation, so that the high-temperature and high-pressure gaseous refrigerant can be fully condensed, the refrigerant noise is eliminated, the supercooling degree is improved, the high-frequency operation of the compressor can be kept so as to provide larger exhaust capacity, and the better refrigeration effect is ensured.

Further, the air conditioning equipment further comprises a first four-way valve, a second four-way valve, a first electromagnetic valve and a second electromagnetic valve, wherein the first four-way valve comprises a first interface, a second interface, a third interface and a fourth interface, the second four-way valve comprises a fifth interface, a sixth interface, a seventh interface and an eighth interface, the first interface is communicated with an exhaust port of the compressor, the second interface is communicated with a return air port of the compressor, the third interface is communicated with an inlet of a first heat exchange pipeline, the fourth interface is communicated with a second end of the indoor heat exchanger, the fifth interface is communicated with an exhaust port of the compressor, the sixth interface is communicated with a return air port of the compressor, the seventh interface is communicated with a first end of the outdoor heat exchanger, the eighth interface is communicated with a first end of the first electromagnetic valve, the second end of the first electromagnetic valve is communicated with an inlet of the first heat exchange pipeline, the outlet of the first heat exchange pipeline is communicated with a first end of the second electromagnetic valve, the second end of the first electronic expansion valve and the second end of the second electronic expansion valve are mutually communicated, and the fourth interface is communicated with the exhaust port of the first heat exchange pipeline, and the fourth interface is communicated with the first end of the second electromagnetic valve, the first electromagnetic valve, the fourth electromagnetic valve, the first electromagnetic valve and the second electromagnetic valve and the electromagnetic valve can realize multiple working expansion modes. Through such setting, through controlling first cross valve, second cross valve, first solenoid valve, second solenoid valve, first electronic expansion valve and second electronic expansion valve, can adjust the flow direction of refrigerant to form the multiple circulation path of refrigerant, and then realized the multiple mode of operation of air conditioning equipment, so as to adapt to multiple different temperature environment.

Further, the air conditioning equipment further comprises a ground heating heat exchanger, a water inlet of the ground heating heat exchanger is communicated with the second end of the second electromagnetic valve, and a water outlet of the ground heating heat exchanger, the first end of the first electronic expansion valve and the second end of the second electronic expansion valve are communicated with each other. Through the arrangement, the air conditioning unit and the floor heating heat exchanger can be combined, the cooperative control of the air conditioning unit and the floor heating heat exchanger is realized, and then the air conditioning equipment forms heating modes with different intensities, so that the air conditioning equipment can adapt to different temperature environments.

Still further, the outdoor heat exchanger of the present utility model further comprises a defrosting heat exchanger, the defrosting heat exchanger is located at the bottom of the outdoor heat exchanger, the first end of the defrosting heat exchanger is communicated with the second end of the second electronic expansion valve, and the second end of the defrosting heat exchanger, the water outlet of the floor heating heat exchanger and the first end of the first electronic expansion valve are communicated with each other. Through such setting, under the heating mode of air conditioner, the refrigerant can be through defrosting heat exchanger reentrant second electronic expansion valve and outdoor heat exchanger and carry out throttle and heat transfer earlier for defrosting heat exchanger can keep higher temperature, and then can prevent outdoor heat exchanger frosting.

Still further, the water heat exchanger is arranged as a sleeve heat exchanger, the inner diameter of the second heat exchange pipeline is larger than the outer diameter of the first heat exchange pipeline, the second heat exchange pipeline is sleeved on the first heat exchange pipeline, and circulating water flows between the outer wall of the first heat exchange pipeline and the inner wall of the second heat exchange pipeline. Through such setting for heat conduction between first heat exchange pipeline and the second heat exchange pipeline is more direct, has effectively improved the heat exchange efficiency between first heat exchange pipeline and the second heat exchange pipeline, and then has improved air conditioning equipment's condensation effect and supercooling degree.

Still further, the air conditioning equipment of the utility model further comprises a liquid storage tank, wherein the first end of the liquid storage tank is communicated with the first end of the first electronic expansion valve, the second end of the liquid storage tank, the water outlet of the floor heating heat exchanger and the second end of the outdoor heat exchanger are mutually communicated, and the liquid storage tank can adjust the flow of the refrigerant in the circulating pipeline so as to adapt to different working modes. Through such setting, can adjust the refrigerant flow in the circulation pipeline through adjusting the liquid storage volume in the liquid storage jar to adapt to the different running modes of air conditioning equipment, make control more accurate, help improving heat exchange efficiency, reduce equipment energy consumption.

Still further, the air conditioning equipment of the utility model further comprises an oil-gas separator, wherein the first end of the oil-gas separator is communicated with the exhaust port of the compressor, the second end of the oil-gas separator is communicated with the first interface and the fifth interface, and the third end of the oil-gas separator is communicated with the air inlet of the compressor so as to separate the oil-gas mixture exhausted by the compressor. By the arrangement, on one hand, the influence of lubricating oil on the heat exchanger on the refrigerating effect can be avoided; on the other hand, the deposit formation in the lubricating oil re-system can be prevented, the air conditioning component is blocked, and the service life of the air conditioning equipment is prolonged; on the other hand, the lubricating oil flow resistance in the system is reduced, the energy consumption is reduced, and the energy is saved.

Still further, the air conditioning equipment of the utility model further comprises a temperature sensor arranged on the outdoor heat exchanger, and the temperature sensor can detect the temperature of the outdoor heat exchanger, thereby providing a basis for starting a defrosting mode of the air conditioning equipment. Through such setting, can carry out real-time temperature detection to the easy frosting position, with temperature information transmission to control module to judge in time whether need open defrosting mode, effectively prevent frosting's production, guaranteed air conditioning equipment's normal operating.

Still further, the air conditioning equipment of the present utility model further comprises a first air pipe stop valve and a second air pipe stop valve, wherein the first end of the first air pipe stop valve is communicated with the first end of the first electronic expansion valve, the second end of the first air pipe stop valve is communicated with the first end of the liquid storage tank, the first end of the second air pipe stop valve is communicated with the second end of the indoor heat exchanger, and the second end of the second air pipe stop valve is communicated with the fourth interface. Through such setting, can control the break-make of indoor part and outdoor part in the circulation pipeline to can seal the refrigerant in outdoor pipeline in air conditioning equipment's installation, the installation and the dismantlement of indoor pipeline and outdoor pipeline of being convenient for have improved the convenience of air conditioning pipeline on the assembly.

Still further, the number of the indoor heat exchangers and the first electronic expansion valves is multiple, and the indoor heat exchangers and the first electronic expansion valves are connected in parallel. Through such setting, make every first electronic expansion valve correspond an indoor heat exchanger, can realize the independent operation and the control of multiunit indoor heat exchanger, and then can adjust and control the flow size and the break-make of every indoor heat exchanger, realize the independent control of temperature, improved holistic heat exchange efficiency and the economic nature of air conditioning equipment.

Drawings

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the operation of an air conditioning apparatus of the present utility model;

Fig. 2 is a second schematic operation diagram of the air conditioning apparatus of the present utility model.

List of reference numerals:

1. A compressor; 21. an indoor heat exchanger; 22. an outdoor heat exchanger; 23. a water heat exchanger; 231. a first heat exchange line; 232. a second heat exchange line; 24. a defrosting heat exchanger; 31. a first electronic expansion valve; 32. a second electronic expansion valve; 41. a first four-way valve; 411. a first interface; 412. a second interface; 413. a third interface; 414. a fourth interface; 42. a second four-way valve; 421. a fifth interface; 422. a sixth interface; 423. a seventh interface; 424. an eighth interface; 51. a first electromagnetic valve; 52. a second electromagnetic valve; 6. a liquid storage tank; 7. an oil-gas separator; 8. a temperature sensor; 91. a first gas pipe stop valve; 92. and a second air pipe stop valve.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "inner", "outer", "upper", "lower", "top", "bottom", and the like, which indicate a direction or a positional relationship, are based on the direction or the positional relationship shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," "fourth," "fifth," "sixth," "seventh," "eighth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "mounted" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

The prior air conditioning equipment based on the background technology has insufficient condensation of the refrigerant in a high-temperature environment, so that the supercooling degree is insufficient, refrigerant sound is generated, and the refrigerating effect is influenced. In order to solve the problem of insufficient condensation, the conventional air conditioning equipment has the common practice of reducing the frequency of a compressor, controlling the displacement of the compressor, reducing the flow of the refrigerant discharged into a circulation pipeline, and improving the problem of insufficient condensation to a certain extent. The utility model provides air conditioning equipment, which aims at adding a water heat exchanger on the air conditioning equipment, wherein the water heat exchanger comprises a first heat exchange pipeline and a second heat exchange pipeline which exchange heat with each other, an exhaust port of a compressor, an inlet of the first heat exchange pipeline and a first end of an outdoor heat exchanger are mutually communicated, an outlet of the first heat exchange pipeline, a second end of the outdoor heat exchanger and the first end of the indoor heat exchanger are mutually communicated, the second end of the indoor heat exchanger is communicated with an air return port of the compressor, and both ends of the second heat exchange pipeline are communicated with water sources to form a circulating waterway, so that high-temperature and high-pressure refrigerant in the first heat exchange pipeline can be cooled and condensed, the condensing pressure of the outdoor heat exchanger is shared, the high-temperature and high-pressure gaseous refrigerant can be fully condensed, the supercooling degree of the air conditioning equipment is increased, the refrigerating effect is enhanced, and the refrigerant sound is eliminated.

Specifically, as shown in fig. 1 and 2, the air conditioning apparatus of the present utility model includes a compressor 1, an indoor heat exchanger 21, an outdoor heat exchanger 22, a first electronic expansion valve 31, a second electronic expansion valve 32, and a water heat exchanger 23, the water heat exchanger 23 includes a first heat exchange pipe 231 and a second heat exchange pipe 232, the first heat exchange pipe 231 and the second heat exchange pipe 232 are closely disposed to achieve heat exchange between the first heat exchange pipe 231 and the second heat exchange pipe 232, an exhaust port of the compressor 1, an inlet of the first heat exchange pipe 231, and a first end of the outdoor heat exchanger 22 are mutually communicated, a second end of the outdoor heat exchanger 22 is mutually communicated with a first end of the second electronic expansion valve 32, an outlet of the first heat exchange pipe 231, a second end of the second electronic expansion valve 32, and a first end of the first electronic expansion valve 31 are mutually communicated, a second end of the first electronic expansion valve 31 is communicated with a first end of the indoor heat exchanger 21, a second end of the indoor heat exchanger 21 is communicated with a return air port of the compressor 1, and both ends of the second heat exchange pipe 232 are communicated to form a water source capable of cooling water source to circulate the first heat exchange refrigerant 231.

Specifically, compared with the traditional air conditioning equipment, the air conditioning equipment is internally provided with a circulation loop, the circulation loop is provided with the water heat exchanger 23, the water heat exchanger 23 comprises the first heat exchange pipeline 231 and the second heat exchange pipeline 232 which are closely arranged with each other, the first heat exchange pipeline 231 is internally used for passing the refrigerant, the second heat exchange pipeline 232 is a water circulation pipeline, specifically, two ends of the second heat exchange pipeline 232 are communicated with a water source, the water source can be a water tank or a water bucket, a water pump is further arranged on the second heat exchange pipeline 232, after the water tank or the water bucket is fully filled with water, normal-temperature water or cold water can circulate in the second heat exchange pipeline 232 under the action of the water pump, so that the high-temperature and high-pressure gaseous refrigerant in the first heat exchange pipeline 231 can be cooled and condensed.

It should be noted that, in practical applications, the first heat exchange pipeline 231 and the second heat exchange pipeline 232 may have various forms of tight arrangement to achieve heat exchange therebetween, for example, they may be tightly attached, tightly crossed or sleeved outside the other, etc., and such flexible adjustment and modification should be limited within the scope and spirit of the present utility model.

When the air conditioning apparatus is operated in the cooling mode, the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 1 is divided into two paths, the first path enters the outdoor heat exchanger 22 to perform conventional cooling condensation, the second path enters the first heat exchange pipeline 231 and exchanges heat with circulating water in the second heat exchange pipeline 232 in the flowing process, the refrigerant is cooled and condensed, so that the condensed pressure can be shared with the outdoor heat exchanger 22, the two parts of refrigerant are condensed and become low-temperature and high-pressure liquid and are recombined again, and then enter the first electronic expansion valve 31 and the indoor heat exchanger 21 together, and the purpose of cooling the indoor heat exchanger 21 is finally achieved through throttling and depressurization and external heat absorption.

The arrangement can fully condense the high-temperature high-pressure gaseous refrigerant, prevent the generation of refrigerant noise, improve the supercooling degree, and does not need to implement frequency reduction treatment on the compressor 1, thereby being capable of maintaining the high-frequency operation of the compressor 1 to provide larger exhaust gas quantity, keeping larger refrigerant flow in the circulating pipeline, maintaining higher heat exchange level of the air conditioning equipment and ensuring good refrigeration effect.

It should be noted that, the indoor heat exchanger 21 and the outdoor heat exchanger 22 may be fin type heat exchangers, air duct type heat exchangers, liquid type heat exchangers, or the like, and the present embodiment is not particularly limited.

Preferably, as shown in fig. 1 and 2, the air conditioning apparatus of the present utility model further includes a first four-way valve 41, a second four-way valve 42, a first electromagnetic valve 51 and a second electromagnetic valve 52, the first four-way valve 41 includes a first interface 411, a second interface 412, a third interface 413 and a fourth interface 414, the second four-way valve 42 includes a fifth interface 421, a sixth interface 422, a seventh interface 423 and an eighth interface 424, the first interface 411 is communicated with an exhaust port of the compressor 1, the second interface 412 is communicated with a return air port of the compressor 1, the third interface 413 is communicated with an inlet of the first heat exchange pipeline 231, the fourth interface 414 is communicated with a second end of the indoor heat exchanger 21, the fifth interface 421 is communicated with an exhaust port of the compressor 1, the sixth interface 422 is communicated with a return air port of the compressor 1, the seventh interface 423 is communicated with a first end of the outdoor heat exchanger 22, the eighth interface 424 is communicated with a first end of the first electromagnetic valve 51, a second end of the first electromagnetic valve 51 is communicated with an inlet of the first heat exchange pipeline 231, an outlet of the first heat exchange pipeline 231 is communicated with an outlet of the second electromagnetic valve 52, the second electromagnetic valve 52 and the second electromagnetic valve 31 are mutually matched with the second electromagnetic valve 32, the electronic expansion valve 32 and the electronic expansion valve 32 are mutually implemented.

By individually controlling the opening and closing of the first four-way valve 41, the second four-way valve 42, the first electromagnetic valve 51, the second electromagnetic valve 52, the first electronic expansion valve 31 and the second electronic expansion valve 32, the valves can jointly act to adjust the flow direction of the refrigerant so as to form various circulation paths of the refrigerant, and thus, various operation modes of the air conditioning equipment are realized so as to adapt to various different temperature environments.

Illustratively, when the air conditioning unit is in the cooling mode, the first interface 411 is communicated with the third interface 413, the second interface 412 is communicated with the fourth interface 414, the fifth interface 421 is communicated with the seventh interface 423, the sixth interface 422 is communicated with the eighth interface 424, the first electromagnetic valve 51 is closed, the second electromagnetic valve 52 and the first electronic expansion valve 31 are opened, at this time, the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 1 is divided into two parts, and one part sequentially passes through the first interface 411 and the third interface 413 of the first four-way valve 41 and then enters the first heat exchange pipeline 231 to exchange heat with the second heat exchange pipeline 232; the other part of the refrigerant enters the outdoor condenser to exchange heat with the outside air after passing through the fifth port 421 and the seventh port 423 of the second four-way valve 42, the two parts of the refrigerant are converted into liquid refrigerant after heat exchange, and flow into the indoor heat exchanger 21 after converging the liquid refrigerant and flowing into the indoor heat exchanger 21 after throttling action of the first electronic expansion valve 31, and heat exchange is performed between the liquid refrigerant and the indoor air in the indoor heat exchanger 21 to complete refrigeration, and the gaseous refrigerant after heat exchange in the indoor heat exchanger 21 flows back into the compressor 1 again after passing through the fourth port 414 and the second port 412 of the first four-way valve 41 in sequence, so that the heat exchange cycle of the refrigerant is realized.

In addition, the refrigerant exchanges heat with water in the water heat exchanger 23 to change the normal-temperature water in the second heat exchange pipeline 232 into hot water, in practical application, hot water needs to be drained and cold water needs to be injected again to exchange heat, at the moment, the generated hot water can be pumped into a hot water tank to be stored and used as domestic hot water, and water sources and energy consumption are effectively saved.

When the air conditioner is in the heating mode, the first interface 411 is communicated with the fourth interface 414, the second interface 412 is communicated with the third interface 413, the fifth interface 421 is communicated with the eighth interface 424, the sixth interface 422 is communicated with the seventh interface 423, the first electromagnetic valve 51 and the second electromagnetic valve 52 are closed, the first electronic expansion valve 31 is opened, at this time, the high-temperature and high-pressure gaseous refrigerant discharged by the compressor 1 can only pass through the first interface 411 and the fourth interface 414 in sequence and then enter the indoor heat exchanger 21, heat is released outwards in the indoor heat exchanger 21, the effect of indoor heating is achieved, the released refrigerant firstly passes through the throttling of the second electronic expansion valve 32 and then enters the outdoor evaporator to exchange heat with the outside, becomes low-pressure gaseous refrigerant, and finally returns to the compressor 1 after passing through the seventh interface 423 and the sixth interface 422 in sequence, and the heating cycle of the system is completed.

Preferably, as shown in fig. 1 and 2, the air conditioning apparatus of the present utility model further includes a floor heating heat exchanger, a water inlet of which is communicated with the second end of the second electromagnetic valve 52, and a water outlet of which, a first end of the first electronic expansion valve 31 and a second end of the second electronic expansion valve 32 are communicated with each other.

Illustratively, the high-temperature refrigerant exchanges heat with circulating water in the ground heating pipe in the ground heating heat exchanger to raise the water temperature in the ground heating pipe, and the water circulates in the ground heating pipe to raise the temperature of the whole house.

The air conditioning apparatus of the present utility model further includes two heating modes: the floor heating independent heating mode and the floor heating and air conditioning combined heating mode.

When the floor heating single heating mode is started, the first interface 411 is communicated with the fourth interface 414, the second interface 412 is communicated with the third interface 413, the fifth interface 421 is communicated with the eighth interface 424, the sixth interface 422 is communicated with the seventh interface 423, the first electromagnetic valve 51 and the second electromagnetic valve 52 are simultaneously opened, the first electronic expansion valve 31 is closed, high-temperature high-pressure gas discharged by the compressor 1 sequentially passes through the fifth interface 421 and the eighth interface 424 and then enters the first heat exchange pipeline 231, heat exchange is carried out between the first heat exchange pipeline 231 and circulating water in the second heat exchange pipeline 232, the exothermic refrigerant enters the outdoor condenser after being throttled by the second electronic expansion valve 32 and is released and converted into low-temperature gaseous refrigerant, and then the refrigerant sequentially passes through the seventh interface 423 and the sixth interface 422 and then returns to the compressor 1, so that the floor heating single heating cycle is completed.

When the floor heating and air conditioning co-heating mode is started, the first interface 411 is communicated with the fourth interface 414, the second interface 412 is communicated with the third interface 413, the fifth interface 421 is communicated with the eighth interface 424, the sixth interface 422 is communicated with the seventh interface 423, the first electromagnetic valve 51, the second electromagnetic valve 52, the first electronic expansion valve 31 and the second electronic expansion valve 32 are opened, high-temperature and high-pressure air discharged by the compressor 1 is divided into two parts, the first part sequentially passes through the first interface 411 and the fourth interface 414 and then enters the indoor heat exchanger 21, heat is released in the indoor heat exchanger 21, the increase of the indoor temperature is realized, the second part sequentially passes through the fifth interface 421, the eighth interface 424 and the first electromagnetic valve 51 and then enters the water heat exchanger 23 and the floor heating heat exchanger, circulating water in the water heat exchanger 23 and the floor heating heat exchanger is heated through heat exchange, the circulating water in the floor heating heat exchanger is circulated in the indoor space to realize the increase of the indoor temperature, the two parts are sequentially passed through the first interface 411 and the fourth interface 414 and then sequentially passes through the second electronic heat exchanger and then enters the indoor heat exchanger 422 and finally enters the air conditioning unit 1 to be compressed and the outdoor heat exchanger 422 to be heated through the fifth interface 1 and the outdoor heat exchanger.

The floor heating and air conditioning combined heating mode is suitable for rooms with low ambient temperature or long-term empty, can enable the temperature of the rooms to rise rapidly, and can be switched to the floor heating independent cooling mode after the temperature rises so as to keep constant temperature.

Therefore, the air conditioning unit is combined with the floor heating heat exchanger, so that the cooperative control of the air conditioning unit and the floor heating heat exchanger is realized, and the air conditioning equipment forms a plurality of heating modes with different intensities, so that the air conditioning equipment can adapt to different temperature environments.

Preferably, as shown in fig. 1 and 2, the outdoor heat exchanger 22 of the present utility model further includes a defrosting heat exchanger 24, the defrosting heat exchanger 24 is located at the bottom of the outdoor heat exchanger 22, a first end of the defrosting heat exchanger 24 is communicated with a second end of the second electronic expansion valve 32, and a second end of the defrosting heat exchanger 24, a water outlet of the floor heating heat exchanger, and a first end of the first electronic expansion valve 31 are communicated with each other.

Typically, when the air conditioning apparatus is operating in a heating mode, the refrigerant absorbs heat from the outside within the outdoor heat exchanger 22, resulting in a low coil temperature of the outdoor heat exchanger 22, and particularly condensed water flowing down and collecting on the bottom of the coil, making the bottom of the coil most prone to frosting.

The defrosting heat exchanger 24 is arranged at the bottom of the outdoor heat exchanger 22 and is communicated with the outdoor heat exchanger 22 through the second electronic expansion valve 32, after the air conditioner is started to heat a mode, high-temperature and high-pressure refrigerant releases heat in the indoor heat exchanger 21, so that the temperature of the refrigerant is reduced, but the rest temperature is still kept between 20 ℃ and 30 ℃, and the cooled refrigerant passes through the defrosting heat exchanger 24 before entering the second electronic expansion valve 32 and the outdoor heat exchanger 22 to reduce the pressure and the temperature, so that the defrosting heat exchanger 24 is heated, the temperature of the defrosting heat exchanger 24 is higher than that of the outdoor heat exchanger 22, and the aim of preventing the outdoor heat exchanger 22 from frosting is fulfilled.

Preferably, as shown in fig. 1 and 2, the water heat exchanger 23 of the present utility model is configured as a double pipe heat exchanger, the inner diameter of the second heat exchange pipe 232 is larger than the outer diameter of the first heat exchange pipe 231, and the second heat exchange pipe 232 is sleeved on the first heat exchange pipe 231, and the circulating water flows between the outer wall of the first heat exchange pipe 231 and the inner wall of the second heat exchange pipe 232.

Thereby form the circulation water course between the outer wall of first heat transfer pipeline 231 and the inner wall of second heat transfer pipeline 232, circulation rivers can be direct with first heat transfer pipeline 231 contact for heat conduction between first heat transfer pipeline 231 and the second heat transfer pipeline 232 is more direct fast, has effectively improved the heat exchange efficiency between first heat transfer pipeline 231 and the second heat transfer pipeline 232, and then has improved air conditioning equipment's condensation effect and supercooling degree.

Preferably, as shown in fig. 1 and 2, the air conditioning apparatus of the present utility model further includes a liquid storage tank 6, a first end of the liquid storage tank 6 is communicated with a first end of the first electronic expansion valve 31, a second end of the liquid storage tank 6, a water outlet of the floor heating heat exchanger and a second end of the outdoor heat exchanger 22 are mutually communicated, and the liquid storage tank 6 can adjust the flow rate of the refrigerant in the circulation pipeline to adapt to different working modes.

The first end and/or the second end of the liquid storage tank 6 are/is provided with a flow regulating valve to regulate the flow of water entering and exiting the liquid storage tank 6, so that the flow of the refrigerant in the circulating pipeline can be regulated, the more the refrigerant is, the stronger the heat exchange efficiency and the heat transfer capacity of the refrigerant are, under the normal condition, when the air conditioner is in a refrigerating mode, the flow of the refrigerant needs to be increased, so that the heat exchange efficiency is improved, when the air conditioner is in a heating mode, the flow of the refrigerant can be properly reduced, the accurate control of the flow of the refrigerant is realized, the heat exchange efficiency is improved, and the energy consumption of the equipment is reduced.

Preferably, as shown in fig. 1 and 2, the air conditioning apparatus according to the present invention further includes an oil-gas separator 7, wherein a first end of the oil-gas separator 7 is communicated with the air outlet of the compressor 1, a second end of the oil-gas separator 7 is communicated with the first interface 411 and the fifth interface 421, and a third end of the oil-gas separator 7 is communicated with the air inlet of the compressor 1 to separate the oil-gas mixture discharged from the compressor 1.

By the arrangement, on one hand, the influence of the lubricating oil on the refrigerating effect caused by the adhesion of the lubricating oil on the heat exchanger can be avoided; on the other hand, the deposit formation in the lubricating oil re-system can be prevented, the air conditioning component is blocked, and the service life of the air conditioning equipment is prolonged; on the other hand, the lubricating oil flow resistance in the system is reduced, the energy consumption is reduced, and the energy is saved.

Preferably, as shown in fig. 1 and 2, the air conditioner of the present utility model further includes a temperature sensor 8 disposed on the outdoor heat exchanger 22, and the temperature sensor 8 is capable of detecting the temperature on the outdoor heat exchanger 22, thereby providing a basis for the air conditioner to turn on the defrost mode.

Through such setting, can carry out real-time temperature detection to the easy frosting position, with temperature information transmission to control module to judge in time whether need open defrosting mode, effectively clear away the frosting, guaranteed air conditioning equipment's normal operating.

The temperature sensor 8 is disposed at the bottom of the outdoor heat exchanger 22, where the position of the outdoor heat exchanger 22 with the lowest temperature is the lowest temperature, and when the temperature sensor 8 detects that the coil temperature is less than or equal to 0 ℃, the defrosting mode needs to be started, that is, the control valves are adjusted to make the refrigerant come out of the exhaust port of the compressor 1 and then enter the outdoor heat exchanger 22 to release heat to defrost the surface, and then enter the indoor heat exchanger 21 to absorb heat from the outside, and at this time, the indoor fan needs to be turned off to stop supplying air to the indoor air, so as to avoid the great drop of the indoor temperature.

Preferably, as shown in fig. 1 and 2, the air conditioning apparatus of the present utility model further includes a first air pipe shut-off valve 91 and a second air pipe shut-off valve 92, a first end of the first air pipe shut-off valve 91 is communicated with a first end of the first electronic expansion valve 31, a second end of the first air pipe shut-off valve 91 is communicated with a first end of the liquid storage tank 6, a first end of the second air pipe shut-off valve 92 is communicated with a second end of the indoor heat exchanger 21, and a second end of the second air pipe shut-off valve 92 is communicated with the fourth interface 414.

The first air pipe stop valve 91 and the second air pipe stop valve 92 can block the circulating flow of the refrigerant in the circulating pipeline so as to isolate the refrigerant from the outdoor part of the circulating pipeline, thereby being convenient for the separation and the butt joint of the indoor pipeline part and the outdoor pipeline part when the air conditioner indoor unit needs to be disassembled or overhauled, and improving the convenience of the air conditioner pipeline on assembly.

Preferably, as shown in fig. 1 and 2, the number of the indoor heat exchangers 21 and the first electronic expansion valves 31 of the present utility model is plural, and the plurality of groups of indoor heat exchangers 21 and the first electronic expansion valves 31 are connected in parallel.

The number of the plurality of indoor heat exchangers 21 is equal to the number of the plurality of first electronic expansion valves 31, and one first electronic expansion valve 31 is arranged at the first end of each indoor heat exchanger 21, and in practical application, one indoor heat exchanger 21 and one first electronic expansion valve 31 are installed in each room, and the rooms are arranged in parallel, so that independent operation and control of multiple groups of indoor heat exchangers 21 can be realized, and further, the flow and on-off of each indoor heat exchanger 21 can be regulated, independent control and regulation of the temperature in each room are realized, and the heat exchange efficiency and economy of equipment are improved.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (10)

1. An air conditioning device is characterized by comprising a compressor, an indoor heat exchanger, an outdoor heat exchanger, a first electronic expansion valve, a second electronic expansion valve and a water heat exchanger, wherein the water heat exchanger comprises a first heat exchange pipeline and a second heat exchange pipeline which are closely arranged to realize heat exchange between the first heat exchange pipeline and the second heat exchange pipeline,

The air outlet of the compressor, the inlet of the first heat exchange pipeline and the first end of the outdoor heat exchanger are mutually communicated, the second end of the outdoor heat exchanger is communicated with the first end of the second electronic expansion valve, the outlet of the first heat exchange pipeline, the second end of the second electronic expansion valve and the first end of the first electronic expansion valve are mutually communicated, the second end of the first electronic expansion valve is communicated with the first end of the indoor heat exchanger, the second end of the indoor heat exchanger is communicated with the air return port of the compressor, and the two ends of the second heat exchange pipeline are communicated with a water source to form a circulating waterway, so that the high-temperature and high-pressure refrigerant in the first heat exchange pipeline can be cooled and condensed.

2. The air conditioning unit of claim 1, further comprising a first four-way valve, a second four-way valve, a first solenoid valve and a second solenoid valve, wherein the first four-way valve comprises a first interface, a second interface, a third interface and a fourth interface, the second four-way valve comprises a fifth interface, a sixth interface, a seventh interface and an eighth interface, the first interface is communicated with an exhaust port of the compressor, the second interface is communicated with a return port of the compressor, the third interface is communicated with an inlet of the first heat exchange pipeline, the fourth interface is communicated with a second end of the indoor heat exchanger, the fifth interface is communicated with an exhaust port of the compressor, the sixth interface is communicated with a return port of the compressor, the seventh interface is communicated with a first end of the outdoor heat exchanger, the second end of the first solenoid valve is communicated with an inlet of the first heat exchange pipeline, the first solenoid valve is communicated with an electronic outlet of the first heat exchange pipeline, the second solenoid valve is communicated with a second end of the electronic valve, the first four-way valve is communicated with a second solenoid valve, the first expansion valve, the fourth solenoid valve is communicated with a fourth solenoid valve, and the fourth solenoid valve is in a common mode.

3. The air conditioning unit of claim 2, further comprising a floor heating heat exchanger, wherein a water inlet of the floor heating heat exchanger is in communication with the second end of the second solenoid valve, and wherein a water outlet of the floor heating heat exchanger, the first end of the first electronic expansion valve, and the second end of the second electronic expansion valve are in communication with each other.

4. An air conditioning apparatus according to claim 3, wherein the outdoor heat exchanger further comprises a defrost heat exchanger located at a bottom of the outdoor heat exchanger, a first end of the defrost heat exchanger being in communication with a second end of the second electronic expansion valve, the second end of the defrost heat exchanger, the water outlet of the floor heating heat exchanger, and the first end of the first electronic expansion valve being in communication with each other.

5. The air conditioning apparatus according to claim 4, wherein the water heat exchanger is configured as a double pipe heat exchanger, the inner diameter of the second heat exchange pipe is larger than the outer diameter of the first heat exchange pipe, the second heat exchange pipe is sleeved on the first heat exchange pipe, and the circulating water flows between the outer wall of the first heat exchange pipe and the inner wall of the second heat exchange pipe.

6. The air conditioning apparatus of claim 5, further comprising a liquid reservoir, wherein a first end of the liquid reservoir is in communication with a first end of the first electronic expansion valve, wherein a second end of the liquid reservoir, a water outlet of the floor heating heat exchanger, and a second end of the outdoor heat exchanger are in communication with each other, and wherein the liquid reservoir is capable of adjusting a flow rate of refrigerant in the circulation line to accommodate different modes of operation.

7. The air conditioning apparatus of claim 6, further comprising an oil and gas separator, a first end of the oil and gas separator being in communication with the exhaust port of the compressor, a second end of the oil and gas separator being in communication with the first interface and the fifth interface, a third end of the oil and gas separator being in communication with the intake port of the compressor to separate the oil and gas mixture exiting the compressor.

8. The air conditioning apparatus of claim 7, further comprising a temperature sensor disposed on the outdoor heat exchanger, the temperature sensor capable of detecting a temperature on the outdoor heat exchanger to provide a basis for the air conditioning apparatus to turn on a defrost mode.

9. The air conditioning unit of claim 8, further comprising a first air duct shut-off valve and a second air duct shut-off valve, the first end of the first air duct shut-off valve being in communication with the first end of the first electronic expansion valve, the second end of the first air duct shut-off valve being in communication with the first end of the reservoir, the first end of the second air duct shut-off valve being in communication with the second end of the indoor heat exchanger, the second end of the second air duct shut-off valve being in communication with the fourth interface.

10. The air conditioning apparatus according to any one of claims 1 to 9, wherein the number of the indoor heat exchangers and the first electronic expansion valves are each set to be plural, and a plurality of sets of the indoor heat exchangers and the first electronic expansion valves are connected in parallel.